Amanda Burton Professor Sam Ryan Actor William Gaminara Actor Tom Ward Actor Emilia Fox Actor William Armstrong Actor Sam Parks Actor Ruth McCabe Actor Ruth Gemmell Actor Jaye Griffiths Actor John McGlynn Actor Clare Higgins Actor Janice Acquah Actor Matthew Steer Actor Richard Huw Actor Nicola Redmond Actor Milo Twomey Actor Doreen Hepburn Actor Mick Ford Actor Chris Wilson Actor Ian Keith Actor Richard Signy Director Renny Rye Director Michael Crompton Writer Nigel McCrery Writer Laura Mackie Executive Producer Jessica Pope Executive Producer Delia Fine Executive Producer Peter Lloyd Writer Patrick Spence Executive Producer J.C. Wilsher Writer Peter Lloyd Writer Niall Leonard Writer David Thacker Director Matthew Evans Director